Guides

Maintenance Guides

Use these guides to understand common maintenance systems, failure patterns, records to keep, and related cost pages before planning repairs.

How to Use These Guides

Start with the system guide when you are trying to understand a symptom, then open the related repair cost page when you need a planning range or shop-quote checklist. The guides are written for budgeting, PM planning, and used-truck review, not for diagnosis.

  • Use system guides to learn what records, symptoms, and failure points matter.
  • Use repair cost pages when you need parts-versus-labor context and shop questions.
  • Use templates after the repair so the invoice, mileage, and next due action stay findable.

Guide library

DPF System Maintenance

DPF maintenance is mostly about preventing soot and ash problems from becoming derates and expensive downtime.

Diesel Aftertreatment System Guide

Aftertreatment systems need clean upstream engine operation, good diagnostics, and careful records because many faults share symptoms.

Air Brake Maintenance Guide

Air brake maintenance combines daily checks, qualified inspections, defect correction, and careful records.

Semi-Truck Tire Wear Patterns

Tire wear patterns can point to inflation, alignment, balance, suspension, or rotation problems before a tire fails.

Cooling System Maintenance

Cooling system maintenance protects the engine from heat damage and helps avoid major repair exposure.

Semi-Truck Battery Maintenance

Battery maintenance is about starting reliability, clean cable connections, charging-system checks, and avoiding no-start downtime.

Fifth Wheel Maintenance

Fifth wheel maintenance protects coupling reliability and helps spot lock, jaw, mounting, and lubrication problems.

Trailer Maintenance Checklist Guide

Trailer maintenance is easy to underbudget because tractors get more attention, but trailer defects still create downtime and inspection risk.

How to Budget for Truck Repairs

Truck repair budgeting works best when PM, tires, irregular repairs, and downtime are tracked separately.

Repair Reserve for Owner-Operators

A repair reserve gives owner-operators room to handle repairs without delaying critical maintenance or relying on emergency credit.